EP 1800012 B1 20100616 - PILOTED NON-RETURN VALVE
Title (en)
PILOTED NON-RETURN VALVE
Title (de)
VORGESTEUERTES RÜCKSCHLAGVENTIL
Title (fr)
CLAPET ANTI-RETOUR A SOUPAPE PILOTE
Publication
Application
Priority
- DE 2005001801 W 20051007
- DE 102004050431 A 20041015
- DE 102004061562 A 20041221
Abstract (en)
[origin: WO2006042508A1] The invention relates to a piloted, blockable non-return valve and a hydraulic drive of a moulding unit, in which a non-return valve of this type is used. The blockable non-return valve comprises a main piston (22) with an associated opening surface (A2, A5) and an associated closing surface (A3, A5). The associated opening surface can be connected to the inlet connection (3) or a hydraulic medium sink via the pilot control (12, 58, 36), in such a way that when the pressure is switched to that of the hydraulic medium sink (T), the pressure on the associated opening surface is released.
IPC 8 full level
F15B 13/043 (2006.01); B29C 45/82 (2006.01); F16K 31/124 (2006.01)
CPC (source: EP)
B22D 17/2069 (2013.01); B22D 17/32 (2013.01); B29C 45/82 (2013.01); F15B 11/022 (2013.01); F15B 13/0431 (2013.01); B29C 2945/76498 (2013.01); B29C 2945/76785 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006042508 A1 20060427; AT E471460 T1 20100715; CN 101048598 A 20071003; CN 101048598 B 20110518; DE 112005002544 A5 20070712; DE 502005009768 D1 20100729; EP 1800012 A1 20070627; EP 1800012 B1 20100616
DOCDB simple family (application)
DE 2005001801 W 20051007; AT 05801436 T 20051007; CN 200580035248 A 20051007; DE 112005002544 T 20051007; DE 502005009768 T 20051007; EP 05801436 A 20051007